Application of Three Order Cumulants in Fault Diagnosis  

作　　者：Wenbing Wu 

机构地区：[1]Department of Mathematics and Computer Science, Nanchang Normal University, Nanchang, China

出　　处：《International Journal of Modern Nonlinear Theory and Application》2018年第4期97-105,共9页现代非线性理论与应用（英文）

摘　　要：The three-order cumulants’ complex forms of different definitions include different coupling information of signals, and the information can be used to diagnose fault. In the experiment of pressure reducing valve’s fault diagnosis, through these different coupling information, the features of fault signals and normal signals were extracted by wavelet in different directions, then these features were inputted to diagnose the fault. The experiment shows that this method can achieve a satisfactory result.The three-order cumulants’ complex forms of different definitions include different coupling information of signals, and the information can be used to diagnose fault. In the experiment of pressure reducing valve’s fault diagnosis, through these different coupling information, the features of fault signals and normal signals were extracted by wavelet in different directions, then these features were inputted to diagnose the fault. The experiment shows that this method can achieve a satisfactory result.

关 键 词：CUMULANTS COUPLING WAVELET FAULT DIAGNOSIS 

分 类 号：R73[医药卫生—肿瘤]